first three new forms follow:

=Chaetura melanopygia= sp. nov.

Related to _C. stictilaema_, but much larger, with feathers of
upper breast more heavily margined with blackish, and without any
trace of a light rump-band.

Description of type, collector's No. 4986 Congo Exp. A. M. N. H.,
[Male] ad. Avakubi, Ituri District, Belgian Congo, Aug. 15, 1913.

Upper parts brownish-black (chaetura-black, Ridgw.) becoming black
on wings and tail, with faint violet and green reflections (green
on freshly molted feathers). Ear coverts drab, bordered with
fuscous-black; feathers of throat pale smoke-gray, margined with
fuscous, those of upper breast similar, but heavily bordered with
fuscous-black, consequently with a very pronounced "scaly"
appearance; lower breast growing darker, so that the dark borders
are less conspicuous, and the feathering of the belly completely
fuscous-black with slight oily gloss. Under wing coverts
mouse-gray with darker edges, flanks and under tail-coverts black
with slight greenish gloss. Tail slightly rounded.

Iris dark brown, bill black, feet bluish, shading to dusky brown
on tips of toes and claws. Sexual organs enlarged.

Length (skin) 145 mm.; wing 164; tail 49.5; bill (exposed
culmen), 7.5; metatarsus 13.

Only one specimen secured, out of two or three of these swifts that were
flying about over the Ituri River, in company with several examples of
_Chaetura cassini_. In spite of our long stay in this region, the species
was not again positively recognized; but _Chaetura cassini_, _C.
stictilaema_ and _C. sabinei_ were all of common occurrence there.

=Apaloderma minus= sp. nov.

Resembling _Apaloderma narina_, but decidedly smaller, of different
coloration, and with bill less swollen. The serration of the maxilla
is less pronounced.

The adult male of _A. minus_ is distinguished by the bluer hue of the
forehead, throat, and upper breast, which show in certain lights deep
violet reflections, and by the more scarlet, less crimson color of the
remaining underparts. In life the naked areas on the cheeks are bright
yellow, whereas in _A. narina_ they are light green.

The adult female differs in the more tawny or ochraceous coloration of
the breast, which is grayish in this sex of _A. narina_, although
sometimes washed with light brown on the upper breast. A greenish
gloss on the upper